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88 Micro Motion
®
Model 1500 Transmitters with the Filling and Dosing Application
Measurement Performance
Density calibration fluids
D1 and D2 density calibration require a D1 (low-density) fluid and a D2 (high-density) fluid. You
may use air and water. If you are calibrating a T-Series sensor, the D1 fluid must be air and the D2
fluid must be water.
For D3 density calibration, the D3 fluid must meet the following requirements:
• Minimum density of 0.6 g/cm
3
• Minimum difference of 0.1 g/cm
3
between the density of the D3 fluid and the density of water.
The density of the D3 fluid may be either greater or less than the density of water
For D4 density calibration, the D4 fluid must meet the following requirements:
• Minimum density of 0.6 g/cm
3
• Minimum difference of 0.1 g/cm
3
between the density of the D4 fluid and the density of the
D3 fluid. The density of the D4 fluid must be greater than the density of the D3 fluid
• Minimum difference of 0.1 g/cm
3
between the density of the D4 fluid and the density of water.
The density of the D4 fluid may be either greater or less than the density of water
10.5.2 Density calibration procedures
To perform a D1 and D2 density calibration, see Figure 10-2.
To perform a D3 density calibration or a D3 and D4 density calibration, see Figure 10-3.
CAUTION
For T-Series sensors, the D1 calibration must be performed on air and the D2
calibration must be performed on water.